Machine for washing tumblers and like liquid receptacles



D@ 29, 1931; A; gm-.mns

MAH'IN'E FOR wAsHNG TUMBLR-s AND' LIKE LIQUID RECEPTAGLES Filed Aug. 19, 1929 2 Sheets-Sheet A. GRIFFITHs 1,838,940

MACHINE FOR WASHING TUMBLERS AND LIKE LIQUID RECEPTACLES Dec. 29, 1931.

Filed Aug. 19. 1929 2 Sheets-Sheet 2 Patented Dec. 29, 1931 -UNITED STATES ,Partnr creia ALFRED GRIFFITHS, 0F LONDON, ENGLAND,`ASSIGNOR TO KLEENGLAS (1929) LIMTED,

v OF LONDON, ENC-.LAND

MACHINE FOR WASHING TUMBLEES AlilD LIKE L IQUD RECEPTACLES Application led August 19, 1929, Serial No. 386,872, and in Great Britain January 3, 1929.

provide simple and efficient means for proportioning the disinfectant to the Water and controlling the supplies of Water and disin fectant.

The invention comprises the provision of 15 means whereby the Washing Water is caused to create a vacuum in a sight feed device iii' order to draw disinfectant through it at a predetermined rate. Y

The invention further comprises the arrangement of a plug cock for controlling the flow of the Washing Water, the introduction 0f the disinfectant to such Washing Water' andthe supply of disinfectant to the sight feed device.

`The invention further comprises the provision of means for the simultaneous control" of the said plug cock and ofthe electric motor driving the tumbler Washing devices.

Referring to the accompanying explana` tory drawings Figure l is a plan vievv of a machine enibodjing my improvements.

Figure 2 is a vertical sectional view on the line A B of Figure l.

Figure 3 is a vertical sectional view, Figure 4 a front elevation and Figure 5 a horizontal sectional vieiv along the Vline C D Figure 3 of the Washing Water and disinfectant control means drawn to a larger scale than in Figures ve0 l and 2.

The saine reference letters in the different views indicate the same parts.

The means for washing the tumblers may be similar to those described in the specifica- Vried in U shaped members c, d attached to stems c having holes f therein through which the washing Water issues. rlhe stems are rotated by anelectric motor g which may drive tion of my prior application for patent, Sen No. 376,645, and comprise squeegees a, car-Y one stem through bevel gears it, the tivo stems being coupled by a belt t Yupon-pulleys Liquid isvdelivered to the interior of the stems by the pipes c Which are supplied Aby the ejector fitting shown in Figures 3, l and 5.

The pipe it is attached to such fittingv at m and the supply of liquid to the fitting is `by Way of the branch u. The interior vconical part o of the fitting has a divergent passage p therein With two branch passages g and i' leading therein. The conical part o' which constitutes a plugcock is turned by thearni s. lt has alsoa groove or channelt Adiereiifi as shownin Figure 3 which can establish communication between a pipe u by Which dis-` infectant or sterilizing-fluid is raised from a tank o and a passage w by Which such fluid is delivered through a valve .9c to Vatube 1.1/ having its delivery behind a glass e and in a space Q-ivhich is closed, except for arcoii` nection 3 which can be placed in con'nnunication with the passage r within the cock o When the cock is in the position shown in Figures 3, l and 5, liquid under the pressure inthe Water supply mains is delivered by thepipe l to the branch n and so into the divergent passage p. The fioiv of such liquid produces a partial vacuum in the passages i and 3 and so in thespace 2 behind the glass e. This causes disinfectant or sterilizing fluid to be drawn through the tube y, valve tc, pasn sages w and t and pipe u from the container e.

Such fluid falls in drops between the tube je/ and branch p, such drops being visible through the glass e and being regulated bythe valve 0a. It will be seen that the device coniprising theV glass c, space 2, tubes 1f and 3 and valve constitutes a sight feed device" for the disinfectant.4 By its aid I obtain a pro-` 'portioning" of disinfectant to ivaterto secure the sterilization of the tumblers or drinking glasses washediby the rotating squeegees a and?) previously referred to.

When the cock 0 is turned by its haiidleor arms to cut off the water supply, the connection between the passages r and 3 and t and 'w are also cut off so that fluid ceases to bedravvn into the space 2 and to be'delivered Vtherefrom to the interior of the cock 0.

' The arni s is turned by means of the handle or knob 5 on the front of the machine, as shown in Figures l and 2. Such handle or knob 5 moves a bar 6 which has a slot 7 therein to engage a projecting piece upon the arm s and a slot to receive the end of the arm 8 which operates the electric switch 9 controlling the motor g so that when the supplies of water and disinfectant are cut ofi', the motor also stops and the machine comes to rest. Likewise when the machine is started, the water and disinfectant supplies are restored.

The machine as shown in Figures l and 2 is divided into three compartments by the division pieces l() and 11. One compartment contains the motor g, the cock o and associated control fittings, another compartment the means for driving the stems c, and the third compartment the squeegee devices.

l may vary the details of my improved machine to suit requirements.

YWhat l claim is l. In machines for washing tumblers, cups and like hollowware, in combination, rotating heads for cleansing the hollowware, pipes supplying cleansing fluid to such heads, a plug cock having an axial passage through which said fluid flows, a fluid supply passage leading into said axial passage through the wall of the plug cock, a further passage also leading into said axial passage through the wall of the plug, a closed vessel with a transparent part maintained under vacuum by said further passage which leads into the bottom of said vessel, a disinfectant fluid inlet passage leading to the top of the vessel, a valve controlling the llow through said disinfectant fluid inlet passage, a groove in the periphery of said plug cock forming a part of said disinfectant fluid inlet passage, and means for turning said cock to cut olf (l) the fluid supply to the axial passage, (2) the connection between the closed vessel and the said axial passage, and (3) the supply of disinfectant fluid to the fluid inlet passage.

2. In a machine for washing tumblers, cups and like hollowware, in combination, rotating heads for cleansing the hollowware, an electric motor for rotating said heads, a switch for said motor, pipes supplying cleansing fluid to such heads, a plug cock with an axial divergent passage therethrough for the flow of such fluid to said heads, a fluid supply passage leading into said axial passage through the body of the plug cock, a further passage also leading into said divergent passage through the body of the plug cock, a closed vessel with a transparent part maintained under vacuum by said further passage which leads into the bottom of said vessel, a disinfectant fluid inlet passage leading to the top of the vessel, a valve controlling the flow through said disinfectant fluid inlet passage into said closed vessel, a groove in the periphery of said plug cock 

